[PokeReader]

I would act towards them the way you normally would, but if they actually bother you by coming to your house again, you need to come up with an excuse. As soon as you got a bad vibe you should have said, "well, it was so nice of you to visit, but I will never get to sleep if I don't finish my unpacking". If they showed up on my deck, or at my house, I'd say something like, "Oh, you know how we girls are, I just can't abide company to see me without spending time getting ready. I'm just not a morning/day/afternoon/ person. But if you call me in advance, sometime, I will try to do one of the neighborhood get togethers, but I warn you, my work schedule is sooo crazy, and then I have to work getting the house set up, but give me a call, and I'll see what I can do!" Be terser, and stronger if it happens again, and you just have to eat one event with these idiots, then you're free. When they interrogate you, make a joke, like, "Why, I didn't know you worked for the FBI! ha, ha, well, these are beautiful curtains, where did you get them?" Eventually you can let them know that you won't answer everything under the sun, but politely, and kind of let them know what jerks they are.
I don't think it's your fault, they are clearly nightmare neighbors. But, if you were willing to pretend to suck up a little it would have helped. Most moms are threatened by independent single women, they think they will steal their men.